1)3х+15=18+х
3x – x = 18 – 15
2x = 3
x = 1.5
2)1,7-0,3p=2+1,7p
– 0,3p – 1,7p = 2 – 1,7
-2p = 0.3
p = -0.15
3)0,5а+11=4-3а
0,5a + 3a = 4 – 11
3.5a = -7
a = -2
4)7у-10=2-4у
7y + 4y = 2 + 10
11y = 12
y = 12/11
у=1,09090909091
1)3х+15=18+х 3x – x = 18 – 15 2x = 3 x = 1.5 2)1,7-0,3p=2+1,7p – 0,3p – 1,7p = 2 – 1,7 -2p = 0.3 p = -0.15 3)0,5а+11=4-3а 0,5a + 3a = 4 – 11 3.5a = -7 a = -2 4)7у-10=2-4у 7y + 4y = 2 + 10 11y = 12 y = 12/11 у=1,09090909091
1)3х+15=18+х
3x – x = 18 – 15
2x = 3
x = 1.5
2)1,7-0,3p=2+1,7p
– 0,3p – 1,7p = 2 – 1,7
-2p = 0.3
p = -0.15
3)0,5а+11=4-3а
0,5a + 3a = 4 – 11
3.5a = -7
a = -2
4)7у-10=2-4у
7y + 4y = 2 + 10
11y = 12
y = 12/11
у=1,09090909091
1)3х+15=18+х 3x – x = 18 – 15 2x = 3 x = 1.5 2)1,7-0,3p=2+1,7p – 0,3p – 1,7p = 2 – 1,7 -2p = 0.3 p = -0.15 3)0,5а+11=4-3а 0,5a + 3a = 4 – 11 3.5a = -7 a = -2 4)7у-10=2-4у 7y + 4y = 2 + 10 11y = 12 y = 12/11 у=1,09090909091